Sélection de la langue

Gouvernement du Canada / Government of Canada

Recherche

Hydroacoustic herring survey results and trawl catches from Hecate Strait, November 14-24, 1987, W.E. Ricker cruise WER87J / by B. McCarter, R. Kieser, D.E. Hay, and D.C. Miller. : Fs97-4/1997E-PDF

"Coastal waters within the 50-200 m bottom contour of Hecate Strait were surveyed to determine Pacific herring abundance estimates and distribution patterns. Total midwater biomass estimates for herring were 11,300 tonnes at Browning Entrance, 2,820 tonnes SW of Bonilla Island, 510 tonnes along Butterworth edge, 620 tonnes in mid-Hecate Strait, 920 tonnes off Lyell Island and 14,620 tonnes in Juan Perez Sound. Herring schools were difficult to integrate acoustically in inlets and narrow sounds because of bottom echo interference and high herring densities near the surface at night. Species composition of thirteen midwater trawl and nine bongo net catches, stomach contents and size and age distribution of herring were also examined. Seawater temperatures were collected at six X.B.T./trawl locations"--Abstract, page iii.

Lien permanent pour cette publication :
publications.gc.ca/pub?id=9.956716&sl=1

Renseignements sur la publication
Ministère/Organisme
  • Canada. Department of Fisheries and Oceans, issuing body.
  • Pacific Biological Station (1972- ), issuing body.
TitreHydroacoustic herring survey results and trawl catches from Hecate Strait, November 14-24, 1987, W.E. Ricker cruise WER87J / by B. McCarter, R. Kieser, D.E. Hay, and D.C. Miller.
Titre de la série
  • Canadian manuscript report of fisheries and aquatic sciences, 0706-6473 ; no. 1997
Type de publicationMonographie - Voir l'enregistrement principal
Langue[Anglais]
FormatTexte numérique
Document électronique
Note(s)
  • Digitized edition from print [produced by Department of Fisheries and Oceans].
  • Includes bibliographical references (page 6).
  • Includes abstracts in English and French.
Information sur la publication
  • Nanaimo, British Columbia : Department of Fisheries and Oceans, Biological Sciences Branch, Pacific Biological Station, October 1988.
  • ©1988
Auteur / Contributeur
  • McCarter, B., author.
Description1 online resource (iv, 72 pages) : maps.
Numéro de catalogue
  • Fs97-4/1997E-PDF
Descripteurs
Demander des formats alternatifs
Pour demander une publication dans un format alternatif, remplissez le formulaire électronique des publications du gouvernement du Canada. Utilisez le champ du formulaire «question ou commentaire» pour spécifier la publication demandée.

Détails de la page

Signaler un problème ou une erreur sur cette page
Date de modification :